I've always been surprised by the number of great projects that never become a success even after really smart people spend time on it.
|Startups products are even better when they've been expected|
One key takeaway here is to avoid building the product if you can help it. Spend more time simplifying the need rather than solving it!
Use all tricks available to confirm a strong need for this product: test it on ulule.com, create a website to offer early access to it, be ready to do anything that will deliver more insights.